updateeventaction.java

来自「Begining JSP Web Development外文书籍源代码」· Java 代码 · 共 62 行

package com.wrox.tourism.actions;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionServlet;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.ServletException;

import java.io.IOException;

import java.sql.Connection;
import java.sql.SQLException;

import java.util.Collection;

import com.wrox.tourism.business.EventBO;
import com.wrox.tourism.entity.Event;

public class UpdateEventAction extends Action {

  public ActionForward perform(ActionMapping mapping,ActionForm form,
    HttpServletRequest request,HttpServletResponse response)
      throws IOException,ServletException {

    ActionErrors errors = new ActionErrors();

    try {

      Event event = (Event)form;
      event.setUserId(request.getRemoteUser());

      int eventId = event.getEventId();

      EventBO eventBO = new EventBO();

      if (eventId == 0) {
        eventBO.createEvent(event);
      } else {
        eventBO.updateEvent(event);
      }

      return mapping.findForward("success");

    } catch (Throwable e) {
      e.printStackTrace();
      ActionError error = new ActionError(e.getMessage());
      errors.add(ActionErrors.GLOBAL_ERROR,error);
    }

    saveErrors(request,errors);
    return new ActionForward(mapping.getInput());

  }

}